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氧化锌矿物的表面性质与浮选关系研究综述
引用本文:罗利萍,徐龙华,巫侯琴,张祥峰.氧化锌矿物的表面性质与浮选关系研究综述[J].金属矿山,2020,49(6):24-30.
作者姓名:罗利萍  徐龙华  巫侯琴  张祥峰
作者单位:1. 西南科技大学环境与资源学院,四川 绵阳 621010;2. 固体废物处理与资源化教育部重点实验室,四川 绵阳 621010;3. 中南大学资源加工与生物工程学院,湖南 长沙 410083
摘    要:氧化锌矿石结构和共伴生关系复杂,表面性质相似,浮选分离难度较大。氧化锌矿中有用矿物异极矿或菱锌矿在浮选过程中难以与含钙脉石矿物方解石和白云石有效分离。因此,对异极矿、菱锌矿及其含钙脉石矿物的表面性质以及其与浮选行为之间的关系进行深入分析可为其高效浮选分离提供理论基础。系统介绍了异极矿和菱锌矿及其含钙脉石矿物表面性质的研究现状,主要包括矿物的表面断裂键、表面润湿性、表面能、表面电性、表面溶解性等,并评述了矿物表面性质与浮选之间的关系。其中,表面断裂键决定矿物暴露面的活性位点;表面润湿性决定矿物天然疏水性;表面能与矿物吸附药剂能力有关,吸附能越负,药剂与矿物表面的相互作用越剧烈;在浮选过程中,带与矿物表面相反的电荷的捕收剂容易通过物理吸附导致浮选;有用矿物表面溶解的金属离子会活化脉石矿物,导致浮选分离困难。最后,对氧化锌矿物表面性质的未来研究方向进行了展望。

关 键 词:氧化锌矿    表面性质  异极矿  菱锌矿  方解石  白云石  可浮性  浮选氧化锌矿    表面性质  异极矿  菱锌矿  方解石  白云石  可浮性  浮选  

A Review on the Relationship between Surface Properties and Flotation of Zinc Oxide Ore
LUO Li-Ping,XU Long-Hua-,WU Hou-Qin,Zhang-Xiang-Feng-.A Review on the Relationship between Surface Properties and Flotation of Zinc Oxide Ore[J].Metal Mine,2020,49(6):24-30.
Authors:LUO Li-Ping  XU Long-Hua-  WU Hou-Qin  Zhang-Xiang-Feng-
Affiliation:1. School of Environment and Resource,Southwest University of Science and Technology,Mianyang 621010,China; 2. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education,Mianyang 621010,China; 3. School of Resource Processing and Bioengineering,Central South University,Changsha 410083,China
Abstract:Zinc oxide ores have many characteristics such as complex structure,complex the concomitant mine and similar surface properties,which makes it difficult to separation from gangue mineral. In the flotation process of zinc oxide ore,it is the difficult to separate the valuable mineral,hemimorphite and smithsonite,from calcium-bearing minerals. Therefore,it can provide a theoretical basis for its efficient flotation separation that an in-depth analysis of the surface properties of hemimorphite,smithsonite and their calcium-bearing gangue minerals and the relationship between surface properties and flotation behavior. This paper systematically introduces the research status of hemimorphite,smithsonite and their calciumbearing gangue minerals in surface features. Factors including surface key fracture,wettability,surface energy,surface potential and surface solubility on floatability the zinc oxide ore are expounded. Among them,the surface key fracture determines the active site of the mineral exposed surface;surface wettability determines the natural hydrophobicity of minerals; in the process of flotation,the collector with charge opposite to the mineral surface can easily lead to flotation by physical adsorption;the metal ions dissolved on the surface of useful minerals will activate gangue minerals,resulting in difficult flotation separation. Finally,the future research direction of the surface characteristics of zinc oxide ores are prospected in this paper.
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